I recently changed the battery from a gel to a lead acid type on my Falcon 87, and since then the kickstart has been kicking back before the engine fires, it has always done it occasionally ,but since the new battery was fitted it is doing it with monotonous regularity. I have not touched the timing since changing the battery, but it does seem odd.....lead acid battery is 6Volts 6A/halready got one gammy leg, don't want another ...cheers chrisc